Shapley found that globular clusters are only found in the Galactic bulge
Indicate whether the statement is true or false
FALSE
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An AC power generator produces 42.9 A (rms) at 2 970 V. The voltage is stepped up to 6 000 V by an ideal transformer, and the energy transmitted through a long-distance power line with a total resistance of 100 ?. What is the rms current in the long-distance line?
a. 87 A b. 21.2 A c. 42.9 A d. 30.2 A e. 61.0 A
A 2.0-m wire carries a current of 15 A directed along the positive x axis in a region where the magnetic field is uniform and given by B = 
mT. What is the resulting magnetic force on the wire?
A.
) NB.
) NC.
) ND.
) NE.
) NCharge A has 10 electric field lines coming out, charge B has 20 lines coming out, and charge C has 30 lines coming in. Which pair of these charges will have the largest force between them if placed one cm apart?
a. A and B c. More information is needed. b. B and C d. C and A
Which of the following stars is the hottest?
A) M7 B) A0 C) G6 D) B4